Ore crusher



2 Sheets-Sheet l.

S. R. KROM.

ORE GRUSHERV..

ummm@ I [y l l "www ETERS, Photon nnnnnnnnnnnnnnnnnnnn D c 2 Sheets-Sheety 2.

(No Model.)

S.R.KR0M.

ORE GRUSHER.V

No. 330,408. Paten-ted Nov.` 17, 1885.

N. PUEHS, Phoko-Lmognphnr. washington, l1 C,

' To @ZZ whom t may concern:

Y tails of construction and to the combinations movingjaws wear away, one plate at a time,

Unirse Sterns @Parent @tripa STEPHEN- R. KROM, OF PLAINFIELD, NEW JERSEY.

oen-causales.

SPECIFICATION forming part of Letters Patent No. 330,408, dated November 17, 1885.

Serial No.155,334. (No model.)

Be it known that I, STEPHEN llt-Knorr, o Plainfield, in the county of Union and State of New Jersey, have invented an Improvement in Ore-Crushers, of which the following is a speeitication.

`This invention relates to that class of orecrushersinwhich there is a hopper between a stationary and a vibratingjaw, the latterjaw being moved by a toggle. A Crusher of this general character may be seen in my Patent N o. 158,800.

The present improvements relate to the deof devices hereinafter set forth and claimed, wherebythe crusher is more easily made and the parts are cheaper and better adapted to the intended uses.

In the drawings, Figure l is asection of the crusher. Fig. 2 is an elevation. Fig. 3 is a -plan view, and Fig, 4 isa side.view,of one of the journal boxes.

. The two .side frames, A A, are of the configuration represented, and strengthened by ribs. The stationary jaw B preferably rests at its lower edge upon brackets b b, that project from the ends of the side frames, but it may be supported by its bolts, and said jaw is held inplace by theshort bolts G, that pass through the lugs C', cast on.` the side frames, A, and the long bolts E pass through lugs on the frames Aand extend the whole length of the machine. The lower bolts, E, pass from end to end of the side frames, A, through the ends of the stationary jaw and through the toggle-abutment F, that extends across from one frame to the other. The lugs E upon the frames, near each end of the bolts E,are cast with such frames and strengthen them, and the bolts, passing through such lugs,tie the parts together. The filling pieces or plates at g are introduced between the ends of the side frames, A, and the stationary jaw, so that as the surfaces of the stationary and on each side is removed to allow the jaws to be screwed up to the regular width of deliveryopening. The moving jaw H is supported by and moves upon the rock-shaft I. It is made as aheavily-ribbed shell with a ledge,h,for the movable face, composed of bars h h2 hito rest upon. The jaw Bis similarly made with a ledge, 7c, for the movable facebars lo k2 k3. The lower bars, h. 7d, will wear away the most rapidly, and are to be set out from time to time as their surfaces wear away, and filling bars or plates are introduced behind them. rlhe plates, It k3, are secured by bolts i, with conical heads passing into conical holes inthe plates. rllhese bolts must be loosened when the other plates are to be set out or changed, and when they are tightened up their conical heads serve to force down the jaw-plates and clamp them firmly in place.

In consequence of the moving jaw swinging `upon a shaft that is placed below the crushingsurfaces there 'is less motion where the jaws are near to each other than there is where the 3and upon the sides of theseboxes there are cylindrical trunnions r, upon which the boxes may swing. There are countersinks at the ends of the trunnions for receiving the screws 4 4, that enter from opposite sides of the bearings N, and the frames A are recessed for the reception of the boxes o and their trunnions. The object of this construction is to allow a small amount of play to the boxes o within the bearings N, so that if the shaft Lsprings underthe heavy strain to which it is subjected the journal-boxes will move and not be cut or unevenly worn by the vibration or spring of the shaft. The eccentric portion of the shaft L between the bearingboxes receives the link P, which has at its lower end the bearing-blocks p for the togglebars q, one of which bears against the back of the moving Crusher-jaw and the other against the toggle-abutment F. There is a rod, S, from the moving jaw,passing through the tog- IOO gle-abutment and provided with a spring, 8,

y undue pressure, instead of any other part of the crusher breaking, and these wrought washers are better than the breakable cups described in my former patents, because such `'breakalole cups's'ometimcs fracture under great strain, and the ilying pieces are dangerous, whereas the wrought-metal washers do not ilytopieces, but may sometimes be turned around when they have become concaved and 'used over again. Besides, when4 brittle cups are used, generally, only one will break, and the other one remaining whole, the parts of the machine are twisted and sometimes bent. With-flexible disks both sides will yield and each set of washers become bent. If the bend or set to the washers is small, the nu's can be set up and bring the parts to place without changing the Washers. The filling-plates g may also be placed between the ends of'the frames and the toggle-abutment, so as to be removed from time to time and cause the moving jaw to approach the stationary jaw, and thereby compensate for wear inl the parts. I also remark that the wrought-metal washer-plates o may rest at their edges upon rings projecting fromthe surface of the toggleabutment and cast with such toggleabutment or made of a separate piece.

I do not claim filling-plates introduced between the jaw-faces and backing of the jaw, as in this case to remove the plates it is necessary to take off the jaw-faces but by introducing the lling-plates between the ends of the frames and the end portions of the removframes, the separate lling-plates between the ends of the trames and the end portions at each side of the stationary jaw, and the tiebolts passing through lugs east on the frames A, substantially as set forth.

3. The combination, with thestationary and movable jaws, the toggle-bars q, link P, aud bearing-blockp, in an ore-crusher, ofthe driving eccentric-shaft L, the two-part journalboxes o, having trunnions rat opposite sides of said boxes, and the side frames having the bearings N, recessed to receive the journalboxes o and trunnions r, substantially as specitied.

4. The combination, with the stationary and moving jaws, the side frames and side bolts, of the toggle-abutment formed with recesses, the wrought-metal washers resiig at their edges around the recesses, the nuts,.toggle bars, eccentric-shaft, and link, substantially as set forth.

5. Thecombinatiou, with the stationary and movable jaws having ledges at their lower portions, of the movable faces made of narrow horizontal bars and plates, and the devices, substantially as set forth, for securing such bars and plates in place, substantially as set forth.v v Signed by me this 2d day of February, A. D. 1885.

' j LTEPHEN R. 'KROM- Witnesses:

GEO; T.r PINCKNEY, j WILLIAM G. MoTT. 

